Method of plating on solid wire



(No Model.)

' S. P. MERRITT.

METHOD OF PLATING ON SOLID WIRE.

No. 428,727. Patented May 27, 1890.

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UNITED STATES PATENT OFFICE.

SAMUEL FOWVLER MERRITT, OF SPRINGFIELD, MASSACHUSETTS.

METHOD OF P-LATING ON SOLID WIRE.

SPECIFICATION forming part of Letters Patent No. 428,727, dated May 2'7, 1890.

Application filed January 7, 1890. Serial No. 336,192. (No model.)

To all whom it may concern.-

Be it known that I, SAMUEL FOWLER MER- RITT, of Spring tield, county of Hampden, State of Massachusetts, have invented a new and useful Improved Method of Plating on Solid \Vire, which is fully set forth in the following specification.

The purpose of my invention is to so cover a composition rod with a plating of gold that.

necessarily left in the center, no matter how finely the wire was drawn, which hole prevented making a solid point at the end of a piece out therefrom. In making the point the end was hammered flat and a piece clipped off lengthwise, the piece going into the scrap subject to waste in remelting.

In the drawings, Figure 1 is a side view of the solid composition rod; Fig. 2, an end View 'of the prepared sheet; Fig. 8, an end view of the tube ready for the reception of the solid composition rod; Fig. 4, a top view of the solid composition rod inserted within the tube; Fig. 5, a front View of the draw-plate.

In these figures, letter A represents a solid composition rod; B, a thin sheet of gold; 0, the tube formed thereof; D, the joint between. its edges; E, F, G, H, and I, holes of different diameters in the draw-plate.

My improved method is to cut prepared sheet B into widths proportionate to the size of solid composition rod A to be covered. Sheet B is then curved about composition rod A, leaving an open space or joint D between the edges of sheet B. After pickling and cleaning rod A and sheet B, rod A is reinserted within tube 0 and a piece of silver solder laid in the open space or joint D between the edges of tube C. Flowing the soldcr fills the space between rod A and tube 0, leaving joint D open. Drawing this goldcovered rod throughla' draw-plate, presenting successively diminishing holes of compression E, F, G, H, and I, gradually closes the space or joint D between the edges of tube 0 until it is unrecognizable, obliterating the joint and leaving the edges apparently consolidated. This rod may then be drawn down through smaller and smaller holes to any desired fineness, and a pin-point made at any point of severance will be solid, as rod and plate are homogeneous. The rod is left long enough to make a point for drawing, so that no gold is lost byclipping or filing.

WVhat I claim, and desire to secure by Letters Patent, is-

The process within described of plating a rod by flowing solder about the same between the tube and rod, closing the joint, and attenuating the consolidated tube and rod, in the manner and by the means set forth.

SAMUEL FOVLER MERRITT.

Witnesses:

.T. G. DUNNING, J. E. LANDEN. 

